I Went out on the super Tenere today with the 478 on board
I have been riding around with the Montana in the car.
Simply stated; if you have one keep your 276/376/478.
I forgot how good everything about the 478 is. I dont think I would ever be happy with the Montana for the Adventure riding I do with our small group. It just doesn't compare. Not even close
I will keep the Montana and continue to use it because it is so versatile and i will use it for paved road only rides. And I will continue to hope they can work on the Montana so it can provide the full functionality of the 478.
But for our adventure rides the 478 will be on the bike.